diff options
Diffstat (limited to 'arch/parisc/kernel/cache.c')
| -rw-r--r-- | arch/parisc/kernel/cache.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index e15f09eaed12..a065349aee37 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c | |||
| @@ -270,7 +270,6 @@ void flush_dcache_page(struct page *page) | |||
| 270 | unsigned long offset; | 270 | unsigned long offset; |
| 271 | unsigned long addr; | 271 | unsigned long addr; |
| 272 | pgoff_t pgoff; | 272 | pgoff_t pgoff; |
| 273 | pte_t *pte; | ||
| 274 | unsigned long pfn = page_to_pfn(page); | 273 | unsigned long pfn = page_to_pfn(page); |
| 275 | 274 | ||
| 276 | 275 | ||
| @@ -301,21 +300,16 @@ void flush_dcache_page(struct page *page) | |||
| 301 | * taking a page fault if the pte doesn't exist. | 300 | * taking a page fault if the pte doesn't exist. |
| 302 | * This is just for speed. If the page translation | 301 | * This is just for speed. If the page translation |
| 303 | * isn't there, there's no point exciting the | 302 | * isn't there, there's no point exciting the |
| 304 | * nadtlb handler into a nullification frenzy */ | 303 | * nadtlb handler into a nullification frenzy. |
| 305 | 304 | * | |
| 306 | 305 | * Make sure we really have this page: the private | |
| 307 | if(!(pte = translation_exists(mpnt, addr))) | ||
| 308 | continue; | ||
| 309 | |||
| 310 | /* make sure we really have this page: the private | ||
| 311 | * mappings may cover this area but have COW'd this | 306 | * mappings may cover this area but have COW'd this |
| 312 | * particular page */ | 307 | * particular page. |
| 313 | if(pte_pfn(*pte) != pfn) | 308 | */ |
| 314 | continue; | 309 | if (translation_exists(mpnt, addr, pfn)) { |
| 315 | 310 | __flush_cache_page(mpnt, addr); | |
| 316 | __flush_cache_page(mpnt, addr); | 311 | break; |
| 317 | 312 | } | |
| 318 | break; | ||
| 319 | } | 313 | } |
| 320 | flush_dcache_mmap_unlock(mapping); | 314 | flush_dcache_mmap_unlock(mapping); |
| 321 | } | 315 | } |
